First version of BlogService with getBlogs and getMyBlogs API with
corresponding samples.
Comments changed
Made changes suggested by Mark, Apart from extending Blog from
AtomEntry. It somehow didn't work. So Blog is still extending
BaseEntity. I will investigate this ang change it later.
Merge pull request #540 from RajmeetBal/BlogServiceFirstVersion

First version of BlogService with getBlogs and getMyBlogs API with